Hook for well-drilling machines



Feb. 16 1926. 1,513,444

L. M. JORDAN HOOK FOR WELL DRILLING MACHINES Filed August 19 1924 Patented F ch16, 1.926. t

. UNITED STATES LUTHER M. JORDAN, OF OW'ASSO, OKLAHOMA.

HOOK FOR WELL-DRILLING MACHINES.

Application filed August 19, 1924. Serial No. 732,964.

To all whom it may concern:

Be it known that I, LUTHER M. JORDAN, a citizen of the United States of America, and resident of Owasso, in the county of Tulsa and State of Oklahoma, have invented certain new and useful ln'lprovements in Hooks for lVell-Drilling Machines, of which the following is a specification.

This invention relates to safety hooks for hoisting apparatus and particularly for employment in connection with oil well rigging where heavy casings, tools and the like are lifted.

It is an'object of this invention to provide a hook adapted to be connected to a line of well drilling apparatus for lifting casings or tools, and the invention has for an object the provision of novel ineans for holding the tongue or latch of the hook in engagement with the bill of the hook and so guarding the said latch as to prevent its movement, should the hook come into contact with parts of the well derrick or other structures.

. It isan object of this invention furthermore to provide a hook having a latch associated with it and with a guard, the said guard having a spring located in it capable of holding the latch normally in engagement with the bill of the hook; the said latch being displaceable by pressure when it is desired to release the hook from any of the well drilling elements with which it is associated.

It is a further object of thisinvention to produce a latch of the character indicated which will be strong and durable, as Well as eliicient and satisfactory in use.

With the foregoing and other objects in view, the invention consists in the details of construction, and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, re fcrence will be had to the accompanying drawings forming part of this application wherein like characters denote corresponding parts in theseveral views, and in which- Figure 1 illustrates a view in elevation showing a hook embodying the invention; and

Figure 2 illustrates a sectional view on the line 22 of Fig. 1.

It is to be understood that in illustration the preferred embodiment of the invention,

the .structin'al features of the invention are disclosed without relation to proportions, for, as 1s well lmown, hooks that are used n connection with well drilling machines are relatively large and strong, as compared with snap hooks and devices-of a general character used for domestic purposes, so that in reading the drawings, it must be taken into account that no attempt has been made to illustrate the device on the large scale in which it is necessary to make the hook for practical use.

In these drawings, 5 denotes the shank of the hook having a hill 6 which terminates in proximity to the shank, leaving a clearance for the insertion of the lines or other connections with which the hook is to be employed. The shank has a swivel 7 on its end remote from the bill and preferably this swivel is associated with an anti-friction assembly 8 which will minimize the friction due to the operation of the device. The inventor, however, does not wish to be limited with respect to the details of the anti-friction elements of the swivel and they are not described in detail.

The shank is preferably formed integral with a guard 9 and there is a space 10 between the guard and the shank in which the latch 11 is oscillatable, which latch is mounted on a pivot 12 anchored in the shank, and the shank is slotted to form a clearance for the latch, as shown in Fig. 2. In that portion 13 of the structure where the guard and shank merge, the said structure is also slotted in order that the latch may move with relation to the bill of the hook; it being shown in Fig. 1 that the latch and bill overlap, and there is a shoulder 14 which the end of the latch engages to limit the outward movement of the latch, under the influence of the spring 15.

The spring is anchored at one end to the guard and at the other end to the latch, and the said spring acts to pull the latch out wardly, but when the latch and bill are to be disasso'ciated for the purpose of releasing a part engaged by the hook, the latch may be forced inwardly by pressure on the plate 16 on the face of the latch, and when the latch is released, the spring will again restore it to the normal position shown in Fig. 1.

It will be apparent from the foregoing that the hook is of special utility associated with well drilling and operating machinery and as a connection for pulling rods and tubing during the manipulations incident to well work ngr,

I claim:

1. In a hook for well drillingmachines, a shank having a swivel and a bi1l5 a gnard extending from one edge of the shank in spaced relation thereto, a latch pivoted to the shank and extending through the space between the guard and the shankto engage the bill of the hook, and a spring for holding the latch and'bill in operative relation to each other.

2. In a hook for welld-rilling machinery, a shank having a bill, the said shank having a slot in its body forming a clearance, a latch'adapted to operate in the slot means for pivotally connecting the latch at one endto the shank, a shoulder onthe bill of the hook engaged by the outer end of the said latch, a guard extending outwardly from the edge of the shank occupied by the latch and having a slot therein in a portion of which th'e'latch is movable,- and a spring in said slot anchored to the said a guard and to the latch and operative to hold the outer end of the latch in engagement with the bill of the hook substantially as described.

SLIn a hook for well drilling machinery,

a shank having a bill, the said shank having a slot in its edge forming a clearance, a latch adapted to operate in the slot; means for pivotally mounting the latch in operative relation to the end of the bill whereby one end of the latch engages the bill, a shoulder on the bill of the hook engaged by the end of said latch, means for exerting outward pull on the said latch fornormally holding it in engagement with the bilhand a guard integral with the shank extending outwardly from the slotted edge thereof and in spaced relation to the said edge for producing a clearance whereby the latch may be manipulated, the said guard having a slot in its junction with the shank in which the latch is movable.

LU nan M. JORDAN. 

